How do you simplify (9−√2)(7+√2)?

1 Answer
Tiffany Quach
May 20, 2016

61+2√2

Explanation:

First, to simplify this expression, you need to use the distributive property (or FOIL):
(9−√2)(7+√2)
9(7)+9(√2)−√2(7)−√2(√2)
63+9√2−7√2−√4

Now, you simplify:
63+2√2−2
63−2+2√2
61+2√2

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